131295221434761 has 16 divisors (see below), whose sum is σ = 175416661090944. Its totient is φ = 87351981237504.

The previous prime is 131295221434739. The next prime is 131295221434847. The reversal of 131295221434761 is 167434122592131.

It is not a de Polignac number, because 131295221434761 - 2¹⁰ = 131295221433737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131295221436761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29869665 + ... + 33982161.

It is an arithmetic number, because the mean of its divisors is an integer number (10963541318184).

Almost surely, 2^{131295221434761} is an apocalyptic number.

It is an amenable number.

131295221434761 is a deficient number, since it is larger than the sum of its proper divisors (44121439656183).

131295221434761 is a wasteful number, since it uses less digits than its factorization.

131295221434761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134160.

The product of its digits is 2177280, while the sum is 51.

The spelling of 131295221434761 in words is "one hundred thirty-one trillion, two hundred ninety-five billion, two hundred twenty-one million, four hundred thirty-four thousand, seven hundred sixty-one".